# FastMCP OpenAPI and FastAPI Integration

**Canonical:** https://apis.io/apis/fastmcp/fastmcp-openapi/  
**Provider:** FastMCP — https://apis.io/providers/fastmcp/  
**Documentation:** https://gofastmcp.com/integrations/openapi

FastMCP OpenAPI and FastAPI Integration is one of 6 APIs that [FastMCP](https://apis.io/providers/fastmcp/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include MCP, OpenAPI, FastAPI, REST, and Integration. The published artifact set on APIs.io includes API documentation.

FastMCP can generate an MCP server directly from an existing OpenAPI 3.x description or a FastAPI application, turning every HTTP operation into an MCP tool with auto-generated schemas and validation. This makes FastMCP a one-step path from any existing REST API to an agent-callable MCP surface, and is the recommended route for retrofitting MCP onto established services without rewriting business logic.

## Machine-readable artifacts (2)

- **Documentation** — https://gofastmcp.com/integrations/openapi
- **Documentation** — https://gofastmcp.com/integrations/fastapi

## Other FastMCP APIs (5)

- [FastMCP Server](https://apis.io/apis/fastmcp/fastmcp-server/)
- [FastMCP Client](https://apis.io/apis/fastmcp/fastmcp-client/)
- [FastMCP Apps](https://apis.io/apis/fastmcp/fastmcp-apps/)
- [FastMCP Authentication](https://apis.io/apis/fastmcp/fastmcp-auth/)
- [FastMCP CLI](https://apis.io/apis/fastmcp/fastmcp-cli/)

## Tags

MCP, OpenAPI, FastAPI, REST, Integration

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/fastmcp/fastmcp-openapi/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/fastmcp/.